[OSGeo-Discuss] Batch geocoding

JP Glutting jpglutting at gmail.com
Fri Feb 4 05:34:10 PST 2011


I have a large set of addresses (around 150k) that I need to geocode for a
study (my Masters thesis on heat-related mortality). I am looking into
different solutions, but I can't find anything that seems like it would work

I could script a solution using Google's map API, but there is a limit of
2,500 addreses per day (I can get around them with a little patience).

Right now the best solution I am looking at geopy for geocoding addresses (
http://code.google.com/p/geopy/). It seems like a good system, I think I can
use it to pull addresses out of my database and write back coordinates.
There is one thing that I am not sure, about, though, is whether I am
actually allowed to use the Google API without my use being liked to a
specific web page. The terms of service and form for getting a Google API
key require a URL linked to a Google account. In fact, it looks like the API
can only be used through a web site:

"5.2 *Account Key*. After supplying Google with your account information and
the URL of your Maps API Implementation, and accepting the Terms, you will
be issued an alphanumeric key assigned to you by Google that is uniquely
associated with your Google Account and the URL of your Maps API
Implementation. Your Maps API Implementation must import the Google Maps
APIs using this key as described in the Maps APIs
and Google will block requests with an invalid key or invalid URL. You may
only obtain and use a key in accordance with these Terms and the Maps APIs
Documentation <http://code.google.com/apis/maps/documentation/>."

So it looks like I can't even get it to work without a URL.

I can always write a script that loops through results extracted from the
database, creates URLs and parses the XML results one at a time, but that
seems like a fairly inelegant solution.

Does anyone have any good ideas about how to geocode a few thousand

Many thanks,
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